英语词汇“pump drill”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pump drill
释义	pump drill noun : a primitive drill in which the shaft is revolved by working up and down a bow or bar carrying a cord attached at the center to the upper end of the shaft
随便看	lance-knight lancelet lancelike lance-linear lanceman lance-oblong lanceolar lanceolate lanceolate lanceolated lanceolately lancepesade lancepod lancer lancer lances lance sergeant lance snake lancet lancet lancet arch lancet architecture lanceted lancet fish lancet fluke

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